Very unlikely. I2C is a transactional protocol with very specific hardware timing requirements. For example, if an I2C master attempts to read from an I2C slave, it expects a response on a very specific set of SCL clock edges. It would not be practical to relay such a message wirelessly, query a rem...

Greetings, We are using the ESP32-WROVER-B with esp-idf v3.3.6 and have noticed an issue we can't explain: When we read the MAC address from the ESP32 WiFi interface in STA mode using the esp_wifi_get_mac() function, the value returned does not match the MAC address reported by the AP point it is co...

I just want to know that how it is problem with one access point. can you please clarify for the same? To clarify, we had a specific 3rd party access point (not an ESP32) that was causing problems and preventing our ESP32 STA from connecting. The SSID on this AP had a special character that was cau...

After further testing, this does not appear to be an issue with esp-idf but rather a problem with one access point.

-AD

Hello All, Apologies for the necropost here, but I'm facing a similar issue: It seems that my ESP32 devices cannot connect when the SSID contains both a space and a period (.) in the SSID: Failing SSID example: MY 2.4 GHZ Working SSID example: MY2.4GHZ Working SSID example: MY 24 GHZ This is easily ...

Folks: I had the exact same issue as the original post. Good news: your can ignore all the workarounds in this thread - it's been fixed in esp-idf release v3.3.1: https://github.com/espressif/esp-idf/releases/tag/v3.3.1 From the HTTP Client release notes: Fixed issue where calling esp_http_client_se...

ESP_Sprite:

You're right on the money: I had an I2C device hanging off of GPIO21 and 22 which also happen to be used by SPI flash on the ESP32-WROVER. This was causing my SPI Flash to be very flaky.

Removing my device from those two GPIOs cleared everything up.

Thanks for the pro-tip!
-AD

Ignoring flashing for a moment, do you see anything on your USB-Serial adapter? You should see some form of debug output when you power up the device. If not, then you'll want to verify your TX/RX connections aren't swapped, UART is configured to the correct baud rate (e.g. 115200 8-N-1), etc. When ...

Hey everyone, I have an ESP32-WROVER-B on multiple custom PCBs with an issue I can't explain: - If I set the menuconfig -> Serial flasher config -> Flash SPI speed to 26, 40, or 80MHz I can flash an image successfully but I will receive a checksum error when the device reboots - If I set the menucon...